"dosent clean or take care of her downstairs area very well." that shit is just NASTY NASTY NASTY NASTY NASTY I wouldn't fuck her with your dick.
Just tell her. Some girls think that all a guy wants is sex, so when they get a guy they fuck his brains out and thing that is all that matters. She is only going to get worse, so tell her to shape up, or get out. If you're thinking of marrying some day--dump this bitch and find one that takes care of herself, because if you put a ring on this one's finger, she's going to be a nasty cunt and total pig and you will have to live with her.
Hmmm! Don't be short-sighted here bro. A bitch that does it all is a good thing to have. I'd hang on as long as I could if I were you. If you find yourself falling in love with someone else, then you let her go. Until then, enjoy the banging!
I'm guessing the first three are guys. I'm a female, so here is my thought. Tell her that you love being with her, but you want her to start taking better care of herself. Try exercising with her. If my man wasn't happy I'd want him to tell me. I'm not saying to be an ass either, just tell her honestly and sincerely because not too many of us women would be trying to get their man a threesome.